1372842817644 has 48 divisors (see below), whose sum is σ = 3278907878400. Its totient is φ = 446857495296.

The previous prime is 1372842817609. The next prime is 1372842817681. The reversal of 1372842817644 is 4467182482731.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524749 + ... + 3019940.

It is an arithmetic number, because the mean of its divisors is an integer number (68310580800).

Almost surely, 2^{1372842817644} is an apocalyptic number.

It is an amenable number.

1372842817644 is an abundant number, since it is smaller than the sum of its proper divisors (1906065060756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1372842817644 is a wasteful number, since it uses less digits than its factorization.

1372842817644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5545182 (or 5545180 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 57.

The spelling of 1372842817644 in words is "one trillion, three hundred seventy-two billion, eight hundred forty-two million, eight hundred seventeen thousand, six hundred forty-four".